Use float counter in a section title

Question

I defined a new float environment for examples

\usepackage{float
\newfloat{example}{htp}{example}
\floatname{example}{Example}

that I the use throughout the document

\begin{example}
...
\caption{yet another example}
\end{example}

with automatic numbering and a table of examples

\listof{example}{List of Examples}

Now I have some long examples that I wish not to put in a float but give as subsections:

\subsection*{A long example}
...

How can I make this subsection to get included in the numbering of examples (with title "Example X: A long example") and appear in the list of examples?

---

P.S.: Claudio Fiandrino has provided a boilerplate which I adopted for my document the following way (looks like the solution depends on you document style, I use scrbook):

\newcommand{\subsectionexample}[1]{
  \stepcounter{example}
  \subsection*{Example \theexample: #1}
  \addcontentsline{example}{example}{\protect\numberline{\theexample}#1}
}

\subsectionexample{A long example}
....

Answer 1

The following should work:

\documentclass[a4paper,11pt]{article}
\usepackage{graphicx,mwe,lipsum}
\usepackage{float}
\newfloat{example}{htp}{example}
\floatname{example}{Example}

\begin{document}
\listof{example}{List of Examples}

\begin{example}
\centering
\includegraphics[scale=0.5]{example-image}
\caption{another example}
\end{example}

\subsection{A long example}
\stepcounter{example} %advance the counter of the example float
\addcontentsline{example}{subsection}{\theexample \hskip.66cm A long example} %add to the list of examples
\lipsum[1]
\begin{example}
\centering
\includegraphics[scale=0.5]{example-image}
\caption{yet another example}
\end{example}
\end{document}

Result: